I.S. EN 61280-4-4:2017现行
Fibre Optic Communication Subsystem Test Procedures Part 4-4: Cable Plants and Links - Polarization Mode Dispersion Measurement for Installed Links
出版：National Standards Authority of Ireland
专家解读视频
Defines uniform methods of measuring polarization mode dispersion (PMD) of single-mode installed links.
IEC 61280-4-4 : 2.0 - Identical
NF EN 61280-4-4 : 2006 - Identical
EN 61280-4-4 : 2017 - Identical
BS EN 61280-4-4 : 2017 - Identical
DIN EN 61280-4-4 : 2007 - Identical
NBN EN 61280-4-4 : 2007 - Identical
SN EN 61280-4-4 : 2006 - Identical
BS EN 61280-4-4 : 2017 - Identical
EN 61280-4-4 : 2017 - Identical
SN EN 61280-4-4 : 2006 - Identical
EN 61280-4-4:2017 - Identical
BS EN 61280-4-4:2017 - Identical
DIN EN 61280-4-4:2018 - Identical
